Revisiting the Na<sub>2/3</sub>Ni<sub>1/3</sub>Mn<sub>2/3</sub>O<sub>2</sub> Cathode: Oxygen Redox Chemistry and Oxygen Release Suppression
Yi Zhang, Miaomiao Wu, Jiwei Ma, Guangfeng Wei, Yun Ling, Renyuan Zhang, Yunhui Huang
Abstract
redox at high operating voltage. Our findings provide a new understanding of the chemical evolution in layered transition metal oxides at high operating voltage. Increasing the covalency of the TM-O bond has been proven to be effective in suppressing the oxygen release and hence improving the electrochemical performance.
Topics & Concepts
CathodeElectrochemistryRedoxOxygen evolutionOxygenChemistryTransition metalChemical engineeringMetalElectrodeInorganic chemistryPhysical chemistryCatalysisEngineeringOrganic chemistryBiochemistryAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesSupercapacitor Materials and Fabrication